Week 7-Long Piston With Cam

OBJECTIVE: To perform a transient analysis on a piston and cam mechanism model that has been provided for the 3 cases.

PROCEDURE:

• Drop Transient Structural
• Import the model
• Update the model
• Edit the model and open Mechanical module
• Rename the geometry
• Select the barrel and Barrel Cam and convert them to rigid bodies
• Select both the contacts and Flip target/contact
• Select both the contacts and apply frictionless
• Add the fixed joint for ground to Barrel
• Add revolute joint for ground to barrel cam
• Add translational joint for Barrel Cam to follower
• Generate the mesh as per requirement
• Add the Joint load for ground to Barrel cam

Analysis Settings:

CASE 1: Frictionless

Equivalent Stress:

Equivalent Strain:

Directional Deformation:

CASE 2: Friction - 0.1

Equivalent Stress:

Equivalent Strain:

Directional Deformation:

CASE 3: Friction - 0.2

Equivalent Stress:

Equivalent Strain:

Directional Deformation:

RESULT:

CASE No.	Friction	Equivalent Stress (MPa)	Equivalent Strain (mm/mm)	Directional Deformation (mm)
1	0	1331.8	0.0067364	10.881
2	0.1	1493.8	0.0075528	10.977
3	0.2	1788.6	0.0090197	11.086

Conclusion:

• Directional Deformation is highest for friction 0.2
• Equivalent Stress is highest for friction 0.2
• Equivalent Strain is highest for friction 0.2
• As the friction increses value of Stress, Directional Deformation and Strain increases